Disinfecting apparatus



.(No Model.)

0. GqsooTT au W. F. BRADSHAW:

DISINFEGTING APPARATUS.

No. 542,376. Patented July 9, 1895. y

Stimm m j rUNITED STATES PATENT OFFICE.

ORCHARDCOULD SCOTT AND WILLIAM FRANCES BRADSHAW, OE SAN' FRANCISCO, CALIFORNIA.

\ SPECIFICATION forming part of Letters Patent No. 542,376, dated July 9, 1895.

` I i Application led March-29, 18975- Serial No. 543,728. (No model.)

To all whom/trudy concern/f `Be ,it known that we, ORCHARD GOULD SCOTT and WILLIAM FRANCES BRADSHAW, Citizens of the United States, residing in the city and'countj7 of San Francisco, in the State of California, have invented certain new and useful Improvements in Disinfecting Apparatus, of which the following is a specification.

Our invention seeks to provide a simple and eiicient device for disinfecting hospital- Wards, water-closets, and other places infected by noxious gases or pests; and it consistsgin certain novel features hereinafter described and claimed.

In the annexed drawings, Figure lis a perspective view of a device embodying our invention, part of the wire gauze or netting being broken away. Fig. 2is a plan View with the top of the frame removed. Fig. 3 is a longitudinal section ofthe device. Fig. 4 is an enlarged detail View of the gage and stopcock for regulating the iow of the iiuid. Figs. 5 and 6 are detail diametrical sections of the conical plate and the pad, and Figs. 7 and 8 are detail plan Views of the same.

The frame of the device'consists of a vertical board or plate and top' andbottom plates projecting therefrom, as clearly shown. The vertical plate is attached to any convenient fixed support, and around the edges of the top and bottom plates We secure the wire netting or gauze F to protect the Huid-holding parts from injury and at the same time permit a circulation of the air through the device.

The Huid is stored ina cylinder or tank A, which is hung on the vertical plate or board, as shown in Fig. 3, and is closed at'its upper end by a cap b, having a vent c. The bottom of the tank is round, and from. its lowest point a pipe 'c leadsv to the vaporizing-cup C. A valve or stop-cock B is` provided in this `pipe justbelow the tank, and the handle of the same is provided with an extension or projection which is engaged by a set-screw y, mounted in a bracket d, depending from the tank. It will be readily understood` that by-turning the set-screw in one or the other direction the valve will be opened more or less and held in the desired position.

' The outer or front end of the pipe eis bent upward and lto the extremity of the same we.

the vaporizing-cup C, whichrests upon an annular shoulder on the pipejust above the bend in the same. Y

The operation of the device willbe readily understood. The disinfecting-fiuid is placed in the tank and is caused to How therefrom by its own weight andthe pressure of the air entering through the vent o. The ,fluid flows from the'tank through the pipe e and escaping from'the end of the same Hows overuponand soalis Yinto thepad E, whence it evaporates. The vapor rising from the pad is disseminated by the air flowing over the pad and the desired disinfecting accomplished. The conical plate serves as a support for the pad and the vaporizing-cup catches any overow of fluid from the pad and prevents such excess of uid from being lost.

The device is very simple in its construction, and its advantages are thought to be obvious.

Havingfthus described our invention, what we claim, and desire to secure by Letters Pat ent, is

'1. A disinfecting apparatus consisting essentially of a tank, a pipe leading from the lower end of the tank and having its free end turned upward, a conical plate secured to and surrounding the upturned end of the pipe, a pad supported by the said plate, and a cup also secured on the pipe and surrounding the pad and plate.

2. In a disinfecting apparatus, the combination of a tank, a pipe leading therefrom, a valve in said pipe having its handle provided 'with a lateral extension, a bracket depending from the tank, and a set screw mounted in said bracket and engaging the 

